复合固体推进剂增材制造技术研究进展  

Advances in additive manufacturing technology of composite solid propellant

作　　者：吕硕 强洪夫[1] 刘英 LYU Shuo;QIANG Hongfu;LIU Ying(Rocket Force University of Engineering,Xi'an 710025,China;Xi'an Aerospace Information Institute,Xi'an 710025,China;Xi'an Aerospace XINYU Electromechanical Equipment Limited Company,Xi'an 710000,China)

机构地区：[1]火箭军工程大学,西安710025 [2]西安航天信息研究所,西安710025 [3]西安航天新宇机电设备有限公司,西安710000

出　　处：《固体火箭技术》2021年第5期670-677,共8页Journal of Solid Rocket Technology

摘　　要：将具有颠覆性的增材制造技术(3D打印技术)应用于复合固体推进剂领域,相比于传统设计和生产工艺,增材制造技术不受装药芯模限制,可设计生产出药型结构复杂、推力可变的药柱,能够大幅缩短工艺周期,提高生产效率和安全性,并有望实现一体化打印成型。综述了国内外增材制造用复合固体推进剂配方设计及药柱性能、增材制造工艺、增材制造系统方面的研究进展。由于复合固体推进剂药浆的粘性和含能特点,目前大部分研究聚焦在材料挤出成型工艺改进及其相应的复合固体推进剂配方调试、打印药柱的性能提升方面。亟需解决大型复杂药柱配方设计、固化时间长、药柱易变形等一系列问题,以实现复合固体推进剂增材制造工程化应用。Compared to traditional design and manufacturing processing,when the disruptive technology of additive manufacturing technology(or 3D printing technology)is applied in the field of composite solid propellant,promising characteristics such as capabilities of design and manufacturing of complex grain with a variable thrust and without the limitation of mandre,significantly shortening of the process cycle,greatly improved manufacturing efficiency and safety can be obtained,furthermore,an integrated 3D printing is hopeful to be achieved.The formulation design of 3D printable composite solid propellant together with the 3D printed grain performance,the additive manufacturing processing and the additive manufacturing system were reviewed.Due to the extreme viscosity and energetic features of composite solid propellant slurry,most current researches focused on the improvement of material extrusion processing,tailoring the corresponding composite solid propellant formulation and the enhancement of grain quality.A series of challenges such as design of large-scale grain with complex grain,long curing cycles,grain deformation should be resolved to realize the engineering application of the additive manufacturing technology of composite solid propellant.

关 键 词：复合固体推进剂 增材制造技术(3D打印) 材料挤出 药型设计 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]